How to expand a link in the form of HTML?

Question

Once I click on the link, it will expand to other folder which is reside in a database. All the databases are in the form of Excel file type. Once I upload the file in the database, the web can catch the file that I uploaded and display it in the expanded link.

Answer 1

You will have to use an active code for this, javascript, PHP, ASP etc. HTML is not going to read database code and present it.